That blatant denial makes Donnie look genuinely shocked for a moment. No, that's...reasonable, but not an ideal response so far as he's concerned. Donnie opens his mouth but he's unable to get a word in edgewise, brow furrowing as Sarah continues.

"...your reasoning is flawed," he finally says after digesting everything. "By your own stated parameters that means that you have no boundaries set. What aren't you willing to do to someone to learn something? What if that hurts someone? If you managed somehow to push open my door, what would you have done if it had fallen in and crushed me to death?"